Comparing the after-effects of continuous theta burst stimulation and conventional 1Hz rTMS on semantic processing

Brückner, Sabrina; Kiefer, Markus; Kammer, Thomas

doi:10.1016/j.neuroscience.2012.12.033

Cited by 29 publications

(26 citation statements)

References 53 publications

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“…There was one study that observed cTBS effect on behavioral outcome by measuring the response time of picture naming in normal subjects, which was shorter after cTBS. 8 In spite of the short stimulation period, we found clear pattern of shifting activation near to peri-lesional Broca's area following cTBS, although, it remained to be illusive whether this network is functionally engaged or not, which is also a matter of debate in terms of proving functional plasticity in brain injured patients.…”

Section: Discussionmentioning

confidence: 71%

cTBS effect on language reorganization verified by fMRI and chronometry TMS in an aphasia patient

Ahn

Bashir

Martin

et al. 2019

Neurology & Clinical Neurosc

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The physiologic effect of continuous theta‐burst stimulation (cTBS) in language network has been reported, although it has the clinical benefit of longer‐lasting inhibitory effects with shorter stimulation time. We report 50‐year‐old aphasia patient showed increased activation of the left Broca's area by cTBS for 3 days on contralateral Broca's homologue area (Brodmann area 45) leading to improvements in speech performance. Furthermore, we were able to validate the engaged network and timing in picture naming using chronometry TMS showing significant delay in picture naming only at 200 ms after picture presentation by the left Broca's area (BA 44/45) stimulation. These results may indicate that cTBS over Broca's homologue area (BA 45) led to functional reorganization of language network by shifting it from right to left through interhemispheric interaction.

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Section: Discussionmentioning

confidence: 71%

cTBS effect on language reorganization verified by fMRI and chronometry TMS in an aphasia patient

Ahn

Bashir

Martin

et al. 2019

Neurology & Clinical Neurosc

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“…In 21 subjects, high-intensity TBS (120% PT) was applied without adverse effects. Since TBS with higher stimulation intensity might result in more pronounced effects [21], the absence of adverse effects in this study might encourage researchers to test TBS in higher intensity ranges.…”

Section: Discussionmentioning

confidence: 89%

“…For instance, both 1 Hz rTMS and cTBS applied to the frontal eye field had inhibitory effects on saccade triggering [20]. Prolonged reaction times in a lexical decision task were observed following cTBS and 1 Hz rTMS applied to left the superior temporal cortex, respectively [21].…”

Section: Introductionmentioning

confidence: 97%

Is Theta Burst Stimulation Applied to Visual Cortex Able to Modulate Peripheral Visual Acuity?

Brückner

Kammer

2014

PLoS ONE

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Repetitive transcranial magnetic stimulation is usually applied to visual cortex to explore the effects on cortical excitability. Most researchers therefore concentrate on changes of phosphene threshold, rarely on consequences for visual performance. Thus, we investigated peripheral visual acuity in the four quadrants of the visual field using Landolt C optotypes before and after repetitive stimulation of the visual cortex. We applied continuous and intermittend theta burst stimulation with various stimulation intensities (60%, 80%, 100%, 120% of individual phosphene threshold) as well as monophasic and biphasic 1 Hz stimulation, respectively. As an important result, no serious adverse effects were observed. In particular, no seizure was induced, even with theta burst stimulation applied with 120% of individual phosphene threshold. In only one case stimulation was ceased because the subject reported intolerable pain. Baseline visual acuity decreased over sessions, indicating a continuous training effect. Unexpectedly, none of the applied transcranial magnetic stimulation protocols had an effect on performance: no change in visual acuity was found in any of the four quadrants of the visual field. Binocular viewing as well as the use of peripheral instead of foveal presentation of the stimuli might have contributed to this result. Furthermore, intraindividual variability could have masked the TMS- induced effects on visual acuity.

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“…The stimulation intensity itself also influences the effectiveness of the applied protocol. For instance, Brückner et al [38] demonstrated that continuous theta-burst stimulation (cTBS) over the prefrontal cortex only impaired lexical decisions when applied at 90% of the individual active motor threshold, but not with the “standard” intensity of 80% of the active motor threshold [30]. …”

Section: An Introduction To Noninvasive Brain Stimulationmentioning

confidence: 99%

Adaptive Plasticity in the Healthy Language Network: Implications for Language Recovery after Stroke

Hartwigsen

2016

Neural Plasticity

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Across the last three decades, the application of noninvasive brain stimulation (NIBS) has substantially increased the current knowledge of the brain's potential to undergo rapid short-term reorganization on the systems level. A large number of studies applied transcranial magnetic stimulation (TMS) and transcranial direct current stimulation (tDCS) in the healthy brain to probe the functional relevance and interaction of specific areas for different cognitive processes. NIBS is also increasingly being used to induce adaptive plasticity in motor and cognitive networks and shape cognitive functions. Recently, NIBS has been combined with electrophysiological techniques to modulate neural oscillations of specific cortical networks. In this review, we will discuss recent advances in the use of NIBS to modulate neural activity and effective connectivity in the healthy language network, with a special focus on the combination of NIBS and neuroimaging or electrophysiological approaches. Moreover, we outline how these results can be transferred to the lesioned brain to unravel the dynamics of reorganization processes in poststroke aphasia. We conclude with a critical discussion on the potential of NIBS to facilitate language recovery after stroke and propose a phase-specific model for the application of NIBS in language rehabilitation.

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Comparing the after-effects of continuous theta burst stimulation and conventional 1Hz rTMS on semantic processing

Cited by 29 publications

References 53 publications

cTBS effect on language reorganization verified by fMRI and chronometry TMS in an aphasia patient

cTBS effect on language reorganization verified by fMRI and chronometry TMS in an aphasia patient

Is Theta Burst Stimulation Applied to Visual Cortex Able to Modulate Peripheral Visual Acuity?

Adaptive Plasticity in the Healthy Language Network: Implications for Language Recovery after Stroke

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